文章基本信息

标题：Japanese Encephalitis vector abundance and infection frequency in Cuddalore District, Tamil Nadu, India: a five-year longitudinal study
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作者：P. Philip Samuel ; D. Ramesh ; V. Thenmozhi 等
期刊名称：Journal of Entomological and Acarological Research
印刷版ISSN：2038-324X
电子版ISSN：2279-7084
出版年度：2016
卷号：48
期号：3
页码：366-371
DOI：10.4081/jear.2016.5630
语种：English
出版社：PAGEPress Publications
摘要：An entomological monitoring of Japanese encephalitis vectors from the Cuddalore district, Tamil Nadu was undertaken at biweekly intervals for 1 hr after dusk for five years to find out the abundance and JE virus activity longitudinally in three villages. A total of 95,644 vectors belonging to 31 species constituted predominantly by Culex vishnui subgroup and Culex gelidus 98.5%. JE virus was identified from Cx. tritaeniorhynchus (18), Cx. vishnui (1) and Cx. gelidus (6) giving infection rate of 0.482, 0.608 and 0.221 respectively. Abundance of Cx. tritaeniorhynchus and Cx. gelidus differed significantly by area, season and year (P<0.05) whereas Cx. vishuni differed significantly by season and year (P<0.05). Transmission was not observed throughout all the seasons and the infection rate was recorded maximum during Hot-Wet season 0.46 (confidence interval: 0.17-1.02). Culex tritaeniorhynchus dominated the catch and the Culex gelidus steadily increased in its abundance during this period compared to the earlier studies conducted from these areas which acts as a secondary vector along with the major vector, Cx. tritaeniorhynchus.
关键词：Culex tritaeniorhynchus;Cx. gelidus and Cx. vishnui;infection rate;Japanese encephalitis;Cuddalore.